How we analyzed California’s wildfire evacuation routes

REDDING, Calif. (AP) — How many roads are enough to get out?
That’s the question we wondered after watching tragedy unfold in Paradise, California, last year during the Camp Fire.
Paradise had five two-lane roads and one four-lane road leading out of town. But the fire forced officials to close three of those routes, further clogging the remaining roads.
Did Paradise have an unusually high ratio of residents to escape routes ? Or were other California communities in a similar situati